blob: 51b3ba482abab1c8a34c69694a2ca8db0fbe0361 [file] [log] [blame]
/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2005,2006,2007 INRIA
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation;
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
*
*/
#include "ccnx-face.h"
#include "ns3/packet.h"
#include "ns3/log.h"
#include "ns3/node.h"
#include "ns3/assert.h"
NS_LOG_COMPONENT_DEFINE ("CcnxFace");
namespace ns3 {
/**
* By default, Ccnx face are created in the "down" state
* with no IP addresses. Before becoming useable, the user must
* invoke SetUp on them once an Ccnx address and mask have been set.
*/
CcnxFace::CcnxFace (Ptr<Node> node)
: m_node (node)
, m_bucket (0.0)
, m_bucketMax (-1.0)
, m_bucketLeak (0.0)
, m_protocolHandler (MakeNullCallback<void,const Ptr<CcnxFace>&,const Ptr<const Packet>&> ())
, m_ifup (false)
, m_id ((uint32_t)-1)
{
NS_LOG_FUNCTION (this);
NS_ASSERT_MSG (node != 0, "node cannot be NULL. Check the code");
}
CcnxFace::~CcnxFace ()
{
NS_LOG_FUNCTION_NOARGS ();
}
CcnxFace::CcnxFace (const CcnxFace &)
{
}
CcnxFace& CcnxFace::operator= (const CcnxFace &)
{
return *this;
}
void
CcnxFace::RegisterProtocolHandler (ProtocolHandler handler)
{
NS_LOG_FUNCTION_NOARGS ();
m_protocolHandler = handler;
}
bool
CcnxFace::IsBelowLimit ()
{
NS_LOG_FUNCTION_NOARGS ();
/// \todo Implement tracing, if requested
if (!IsUp ())
return false;
if (m_bucketMax > 0)
{
if (m_bucket+1.0 > m_bucketMax)
return false;
m_bucket += 1.0;
}
return true;
}
void
CcnxFace::LeakBucket (const Time &interval)
{
const double leak = m_bucketLeak * interval.ToDouble (Time::S);
m_bucket -= std::max (0.0, m_bucket - leak);
NS_LOG_ERROR ("max: " << m_bucketMax << ", Current bucket: " << m_bucket << ", leak size: " << leak << ", interval: " << interval << ", " << m_bucketLeak);
}
bool
CcnxFace::Send (Ptr<Packet> packet)
{
NS_LOG_FUNCTION_NOARGS ();
/// \todo Implement tracing, if requested
if (!IsUp ())
return false;
SendImpl (packet);
return true;
}
bool
CcnxFace::Receive (const Ptr<const Packet> &packet)
{
NS_LOG_FUNCTION_NOARGS ();
/// \todo Implement tracing, if requested
if (!IsUp ())
return false;
m_protocolHandler (this, packet);
return true;
}
// void
// CcnxFace::SetMetric (uint16_t metric)
// {
// NS_LOG_FUNCTION (metric);
// m_metric = metric;
// }
// uint16_t
// CcnxFace::GetMetric (void) const
// {
// NS_LOG_FUNCTION_NOARGS ();
// return m_metric;
// }
/**
* These are face states and may be distinct from
* NetDevice states, such as found in real implementations
* (where the device may be down but face state is still up).
*/
bool
CcnxFace::IsUp (void) const
{
NS_LOG_FUNCTION_NOARGS ();
return m_ifup;
}
void
CcnxFace::SetUp (bool up/* = true*/)
{
NS_LOG_FUNCTION_NOARGS ();
m_ifup = up;
}
bool
CcnxFace::operator== (const CcnxFace &face) const
{
NS_ASSERT_MSG (m_node->GetId () == face.m_node->GetId (),
"Faces of different nodes should not be compared to each other");
return (m_id == face.m_id);
}
bool
CcnxFace::operator< (const CcnxFace &face) const
{
NS_ASSERT_MSG (m_node->GetId () == face.m_node->GetId (),
"Faces of different nodes should not be compared to each other");
return (m_id < face.m_id);
}
std::ostream&
CcnxFace::Print (std::ostream &os) const
{
os << "id=" << GetId ();
return os;
}
std::ostream& operator<< (std::ostream& os, const CcnxFace &face)
{
face.Print (os);
return os;
}
}; // namespace ns3